The coevolution theory of autumn colours.

  title={The coevolution theory of autumn colours.},
  author={Marco Archetti and Sam P. Brown},
  journal={Proceedings. Biological sciences},
  volume={271 1545},
According to the coevolution theory of autumn colours, the bright colours of leaves in autumn are a warning signal to insects that lay their eggs on the trees in that season. If the colour is linked to the level of defensive commitment of the tree and the insects learn to avoid bright colours, this may lead to a coevolutionary process in which bright trees reduce their parasite load and choosy insects locate the most profitable hosts for the winter. We try to clarify what the theory actually… CONTINUE READING
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